diff options
Diffstat (limited to 'crypto/src/asn1/nist')
| -rw-r--r-- | crypto/src/asn1/nist/NISTNamedCurves.cs | 108 | ||||
| -rw-r--r-- | crypto/src/asn1/nist/NISTObjectIdentifiers.cs | 65 |
2 files changed, 173 insertions, 0 deletions
diff --git a/crypto/src/asn1/nist/NISTNamedCurves.cs b/crypto/src/asn1/nist/NISTNamedCurves.cs new file mode 100644 index 000000000..0e82dda7a --- /dev/null +++ b/crypto/src/asn1/nist/NISTNamedCurves.cs @@ -0,0 +1,108 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Asn1; +using Org.BouncyCastle.Asn1.Sec; +using Org.BouncyCastle.Asn1.X9; +using Org.BouncyCastle.Utilities; +using Org.BouncyCastle.Utilities.Collections; + +namespace Org.BouncyCastle.Asn1.Nist +{ + /** + * Utility class for fetching curves using their NIST names as published in FIPS-PUB 186-3 + */ + public sealed class NistNamedCurves + { + private NistNamedCurves() + { + } + + private static readonly IDictionary objIds = Platform.CreateHashtable(); + private static readonly IDictionary names = Platform.CreateHashtable(); + + private static void DefineCurve( + string name, + DerObjectIdentifier oid) + { + objIds.Add(name, oid); + names.Add(oid, name); + } + + static NistNamedCurves() + { + DefineCurve("B-571", SecObjectIdentifiers.SecT571r1); + DefineCurve("B-409", SecObjectIdentifiers.SecT409r1); + DefineCurve("B-283", SecObjectIdentifiers.SecT283r1); + DefineCurve("B-233", SecObjectIdentifiers.SecT233r1); + DefineCurve("B-163", SecObjectIdentifiers.SecT163r2); + DefineCurve("K-571", SecObjectIdentifiers.SecT571k1); + DefineCurve("K-409", SecObjectIdentifiers.SecT409k1); + DefineCurve("K-283", SecObjectIdentifiers.SecT283k1); + DefineCurve("K-233", SecObjectIdentifiers.SecT233k1); + DefineCurve("K-163", SecObjectIdentifiers.SecT163k1); + DefineCurve("P-521", SecObjectIdentifiers.SecP521r1); + DefineCurve("P-384", SecObjectIdentifiers.SecP384r1); + DefineCurve("P-256", SecObjectIdentifiers.SecP256r1); + DefineCurve("P-224", SecObjectIdentifiers.SecP224r1); + DefineCurve("P-192", SecObjectIdentifiers.SecP192r1); + } + + public static X9ECParameters GetByName( + string name) + { + DerObjectIdentifier oid = (DerObjectIdentifier) objIds[ + Platform.ToUpperInvariant(name)]; + + if (oid != null) + { + return GetByOid(oid); + } + + return null; + } + + /** + * return the X9ECParameters object for the named curve represented by + * the passed in object identifier. Null if the curve isn't present. + * + * @param oid an object identifier representing a named curve, if present. + */ + public static X9ECParameters GetByOid( + DerObjectIdentifier oid) + { + return SecNamedCurves.GetByOid(oid); + } + + /** + * return the object identifier signified by the passed in name. Null + * if there is no object identifier associated with name. + * + * @return the object identifier associated with name, if present. + */ + public static DerObjectIdentifier GetOid( + string name) + { + return (DerObjectIdentifier) objIds[ + Platform.ToUpperInvariant(name)]; + } + + /** + * return the named curve name represented by the given object identifier. + */ + public static string GetName( + DerObjectIdentifier oid) + { + return (string) names[oid]; + } + + /** + * returns an enumeration containing the name strings for curves + * contained in this structure. + */ + public static IEnumerable Names + { + get { return new EnumerableProxy(objIds.Keys); } + } + } +} diff --git a/crypto/src/asn1/nist/NISTObjectIdentifiers.cs b/crypto/src/asn1/nist/NISTObjectIdentifiers.cs new file mode 100644 index 000000000..8eb5ed437 --- /dev/null +++ b/crypto/src/asn1/nist/NISTObjectIdentifiers.cs @@ -0,0 +1,65 @@ +using Org.BouncyCastle.Asn1; + +namespace Org.BouncyCastle.Asn1.Nist +{ + public sealed class NistObjectIdentifiers + { + private NistObjectIdentifiers() + { + } + + // + // NIST + // iso/itu(2) joint-assign(16) us(840) organization(1) gov(101) csor(3) + + // + // nistalgorithms(4) + // + public static readonly DerObjectIdentifier NistAlgorithm = new DerObjectIdentifier("2.16.840.1.101.3.4"); + + public static readonly DerObjectIdentifier HashAlgs = NistAlgorithm.Branch("2"); + + public static readonly DerObjectIdentifier IdSha256 = HashAlgs.Branch("1"); + public static readonly DerObjectIdentifier IdSha384 = HashAlgs.Branch("2"); + public static readonly DerObjectIdentifier IdSha512 = HashAlgs.Branch("3"); + public static readonly DerObjectIdentifier IdSha224 = HashAlgs.Branch("4"); + public static readonly DerObjectIdentifier IdSha512_224 = HashAlgs.Branch("5"); + public static readonly DerObjectIdentifier IdSha512_256 = HashAlgs.Branch("6"); + + public static readonly DerObjectIdentifier Aes = new DerObjectIdentifier(NistAlgorithm + ".1"); + + public static readonly DerObjectIdentifier IdAes128Ecb = new DerObjectIdentifier(Aes + ".1"); + public static readonly DerObjectIdentifier IdAes128Cbc = new DerObjectIdentifier(Aes + ".2"); + public static readonly DerObjectIdentifier IdAes128Ofb = new DerObjectIdentifier(Aes + ".3"); + public static readonly DerObjectIdentifier IdAes128Cfb = new DerObjectIdentifier(Aes + ".4"); + public static readonly DerObjectIdentifier IdAes128Wrap = new DerObjectIdentifier(Aes + ".5"); + public static readonly DerObjectIdentifier IdAes128Gcm = new DerObjectIdentifier(Aes + ".6"); + public static readonly DerObjectIdentifier IdAes128Ccm = new DerObjectIdentifier(Aes + ".7"); + + public static readonly DerObjectIdentifier IdAes192Ecb = new DerObjectIdentifier(Aes + ".21"); + public static readonly DerObjectIdentifier IdAes192Cbc = new DerObjectIdentifier(Aes + ".22"); + public static readonly DerObjectIdentifier IdAes192Ofb = new DerObjectIdentifier(Aes + ".23"); + public static readonly DerObjectIdentifier IdAes192Cfb = new DerObjectIdentifier(Aes + ".24"); + public static readonly DerObjectIdentifier IdAes192Wrap = new DerObjectIdentifier(Aes + ".25"); + public static readonly DerObjectIdentifier IdAes192Gcm = new DerObjectIdentifier(Aes + ".26"); + public static readonly DerObjectIdentifier IdAes192Ccm = new DerObjectIdentifier(Aes + ".27"); + + public static readonly DerObjectIdentifier IdAes256Ecb = new DerObjectIdentifier(Aes + ".41"); + public static readonly DerObjectIdentifier IdAes256Cbc = new DerObjectIdentifier(Aes + ".42"); + public static readonly DerObjectIdentifier IdAes256Ofb = new DerObjectIdentifier(Aes + ".43"); + public static readonly DerObjectIdentifier IdAes256Cfb = new DerObjectIdentifier(Aes + ".44"); + public static readonly DerObjectIdentifier IdAes256Wrap = new DerObjectIdentifier(Aes + ".45"); + public static readonly DerObjectIdentifier IdAes256Gcm = new DerObjectIdentifier(Aes + ".46"); + public static readonly DerObjectIdentifier IdAes256Ccm = new DerObjectIdentifier(Aes + ".47"); + + // + // signatures + // + public static readonly DerObjectIdentifier IdDsaWithSha2 = new DerObjectIdentifier(NistAlgorithm + ".3"); + + public static readonly DerObjectIdentifier DsaWithSha224 = new DerObjectIdentifier(IdDsaWithSha2 + ".1"); + public static readonly DerObjectIdentifier DsaWithSha256 = new DerObjectIdentifier(IdDsaWithSha2 + ".2"); + public static readonly DerObjectIdentifier DsaWithSha384 = new DerObjectIdentifier(IdDsaWithSha2 + ".3"); + public static readonly DerObjectIdentifier DsaWithSha512 = new DerObjectIdentifier(IdDsaWithSha2 + ".4"); + } +} |